For the 2003 Subaru Forester, both the low-beam and high-beam headlights use a 9003 bulb. The supplied fitment data does not identify a separate bulb by headlight style or configuration, so verify the original bulb and housing before ordering.
Fog-light fitment is listed as either H3 or H3C; compare the existing bulb and connector to determine the correct option. Front and rear turn signals use amber 7440A bulbs, while the brake and tail lights use 7443R. The center brake light uses 912, and the reverse lights use 921.
- Front side marker: 168NA
- Parking, license plate, and trunk lighting: 168 or 917
- Dome and map lights: DE3175
- Ash light: compare the original bulb; options are 2721 or 74
Because several locations have more than one listed option, match the replacement to the bulb currently installed before purchasing.